Course of Trigeminal Nerve and Trigeminothalamic Pathway Mandibular (CN V3) Division of Trigeminal Nerve Maxillary (CN V2) Division of Trigeminal Nerve Ophthalmic (CN V1) Division of Trigeminal Nerve Sensory Map Of Trigeminal Nerve on Face Area of Ophthalmic division: Line joining – Just behind the top of head Corner of eyes…
Author: Epomedicine
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Brown-Sequard Syndrome – Anatomical Basis
Definition of Brown Sequard Syndrome Neurological syndrome resulting from spinal cord hemisection (damage to one lateral half of spinal cord). Causes of Brown Sequard Syndrome Penetrating trauma Spinal fractures Spinal dislocation Disc herniation Vasculitis Radiation induced injury Clinical Manifestations and Anatomical Basis of Brown Sequard Syndrome 1. Damage of Corticospinal…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Lower Motor Neuron Lesion (LMNL) – Anatomical Basis
The anatomical basis of Upper Motor Neuron Lesion (UMNL) has already been discussed earlier. Similarly, we will explain the anatomical basis of clinical syndrome of Lower Motor Neuron Lesion (LMNL). A. Ipsilateral involvment: Lower motor neuron comprises of motor neurons in the anterior neurons and the fibers originating from them,…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Spinal Tracts Simplified
Organization of Ascending and Descending Tracts in Spinal Cord A. 2 Posterior Tracts: The fibers of these tracts cross to the opposite side at the level of medulla: B. 2 Lateral Tracts: The fibers of these tracts remain on ipsilateral side: C. 2 Anterior Tracts: The fibers of these tracts…
PGMEE, MRCS, USMLE, MBBS, MD/MS
Upper Motor Neuron Lesions (UMNL) – Anatomical Basis
For the purpose of remembering the clinical manifestations of upper motor neuron lesion (UMNL) and lower motor neuron lesion (LMNL), a mnemonic has already been devised and discussed here. Now, it’s time to understand the anatomical and physiological basis of these manifestations. Upper Motor Neuron Lesion (UMNL) Syndrome Acute Manifestations…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Prostate – Applied Anatomy
Embryology and Development of Prostate Gland Time: During 3rd month of gestation Fetal testosterone is converted by 5α-reductase into 5α-Dihydrotestosterone (DHT). This hormone stimulates urogenital sinus mesenchyme, which in turn stimulates formation of prostatic buds (endodermal outhgrowths) from posterior urogenital sinus epithelium. Prostatic buds invade into urogenital sinus mesenchyme. Differentiation:…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Breast Cancer Screening
ACS recommendations (2015) For women with average risk: 40-44 years: mammogram on patient’s choice 45-54 years: mammogram yearly >54 years: mammogram 2 yearly or yearly based on patient’s choice Women must be informed on the benefits and harms of mammographic screening Regular clinical breast exam and breast self-exam are not…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Breast Cancer Risk Factors with Mnemonics
EPIDEMIOLOGY OF BREAST CANCER Incidence: In general, less industrialized nations tend to have lower rates of breast cancer, with Japan being an exception to this rule. The highest rates are seen in Europe and North America. Age at onset: Race: incidence is higher among white women than African- American woman, but the mortality is higher…